Frequently Asked Questions about T-Lock Models:

How does the T-Lock knows which calls to block?
In the US, the T-Lock is preset to block all calls that begin with a 1 or a 0 since these cover all toll calls.  

How does the T-Lock know which calls to allow?
The T-Lock is preset to allow local 7 or 10 digit calls and any call(s) that you have programmed into the allowed memory of the unit.

Can I block local calls and 411 calls?
If you wish to block 3, 7 or 10 digit calls such as 411 calls, you need to change the digit restriction to 2 (less than 3).  Keep in mind that when you change the digit restriction to a number less than the number of digits needed to dial local calls, you will be blocking all local calls as well.  If you wish to allow certain local calls, refer to the allow memory instructions in the instructions manual

In my area there are 7 or 10 digit calls that are considered long distance calls. How can I block those and allow the once that are local?
For example, in Puerto Rico local calls can be long distance. The T-Lock allows you to block this long distance charges.  First you need to find out what are the local prefixes (a prefix is the first 3 digits of your 7-digit phone number).  Second you need to program to T-Lock using the instructions to add specific numbers into the allow memory in the manual.  Following this procedure, you can add up to 240 digits of prefixes, area codes, etc.

If 240 digits is not enough for the local prefixes (for example the metropolitan area in San Juan, PR), then you can be a little creative and save digits by reducing the amount of digits entered.  For example if all the 2x are local prefixes (meaning all calls starting with 20, 21, 22, 23, 24, 25, 26, 27, 28 & 29), then you only need to enter 2 in the memory.  If you need further help, please contact our technical support engineers. We will usually get back to you within 24 hours.

How difficult is it to install?
The T-Lock is relatively easy to install and it comes with Do-it-yourself instructions.    However, we strongly recommend you find or hire someone who has a basic technical understanding of the telephone wiring to perform this installation.   

How do I program the T-Lock?
The T-Lock is programmed through your existing telephone's keypad or dial using simple commands (T-Lock instructions). It's so easy anyone can do it. The T-Lock will retain your program even if it is disconnected from the line.  

What if it breaks?
The T-Lock has no moving parts and is completely solid state. It has a full one (1) year warranty and should last for years. Best of all the unit is completely undetectable so it's not likely to be bypassed or vandalized.  

We now have more than one area code that is a local phone call. Can the T-Lock be programmed to handle this?
It is easy to handle local calls with an area code by just programming the area code into the "allowed number" list. Calls that start with the area code but which are not preceded by a 1 or a 0 will be allowed. The T-Lock will still block calls to the area code if they are preceded with a 1 or 0.

Before I finish entering the 10 2222 I get this recording?
This is a very common problem.  99% of the time when you start dialing the 10 2222 (or whatever your security code is), you will get a recording before you finish.    Please do not panic! finish dialing the 10 2222 (ignore the recording) and wait 1-2 seconds, 99% of the time you will hear a second dialtone indicating that you can proceed.  
If you continue to have this problem, try using a different telephone set before contacting our technical support.

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